Batch XLS AND XLSX Converter is a Excel XLS to XLSX XLSX to XLS Batch Converter that can convert Excel XLS to XLSX and XLSX to XLS easily. Batch XLS TO XLSX Converter supports powerful search for a lot of files. A XLS and XLSX converter for Excel. Batch XLS AND XLSX Converter supports project and command line. Batch XLS AND XLSX Converter has a friendly GUI so it is used very easily. Batch XLS & XLSX Converter Drag and Explorer Context supported.